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5157252 = 2232143257
BaseRepresentation
bin10011101011000110000100
3100201000102100
4103223012010
52310013002
6302312100
761556502
oct23530604
910630370
105157252
112a027a1
121888630
1310b7539
14983672
156bd11c
hex4eb184

5157252 has 18 divisors (see below), whose sum is σ = 13036478. Its totient is φ = 1719072.

The previous prime is 5157247. The next prime is 5157277. The reversal of 5157252 is 2527515.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2742336 + 2414916 = 1656^2 + 1554^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71593 + ... + 71664.

Almost surely, 25157252 is an apocalyptic number.

It is an amenable number.

5157252 is an abundant number, since it is smaller than the sum of its proper divisors (7879226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5157252 is a wasteful number, since it uses less digits than its factorization.

5157252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143267 (or 143262 counting only the distinct ones).

The product of its digits is 3500, while the sum is 27.

The square root of 5157252 is about 2270.9583879939. The cubic root of 5157252 is about 172.7717707230.

The spelling of 5157252 in words is "five million, one hundred fifty-seven thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 143257 286514 429771 573028 859542 1289313 1719084 2578626 5157252